Organ-stop knob



(No Model.)

R. ALBEN.v

ORGAN STOP KNOB. No. 372,649. Patented Nov. 8, 1887.

N. PETKRS, Phaluxhogupher. vla-hmmm ILC.

lUNiTnD STATES ATENT ertoe.

RINALDO ALDEN, OF CHICAGO, ILLINOIS.

oRGAN-STOP KNOB.

SPECIFICATIONforming part of Letters Patent No. 372,649, dated November 8, 1887.

Application tiled February 24, 1887. Serial No. 229,462. (No model.)

To all whom it may concern:

Be it known that I, RINALDO ALDnN, residing at Chicago, in the county of Cook and State of Illinois, and a citizen ot' the United States, have invented a new and useful Improvement in OrgairStop Knobs, of which the following is a full description.

The object of my invention is to produce an organ-stop knob which shall be cheap,durable, and sightly, and free from liability of splitting while in use. I attain this object by the mechanism illustrated in the accompanying drawings, in which- Figure 1 shows a top View of my improved knob; Fig. 2, a side View of the saine; Fig. 3, a section through the line .r x; and Fig. 4 is a vertical central section ot' the metal ring.

Referring to the drawings,in which similar letters refer to like parts, D is the knob, provided with the sunken top and sloping sides, as shown in Fig. 3. A is a metal ring provided with the flange c. Thering A fits over the knob D and holds the naine plate B in position.

My improved k uob is constructed as follows, viz:

The name plate B, of diameter a little greater than that of the top face of the knob, is placed in position so that its outside edge rests against the sloping sides of the top of the knob, its under surface being a little distance above the top face of the knob. The ring A is then placed over the knob so that the flange e rests upon the upper outside edge of the plate B. The lower edge, a, ofthe ring is then spun down, around, and into the yielding material of the knob, as shown in Fig. 2, while, by

of thecontact of the flange e with the plate B. l

The outside ofthe ring A is then deeply milled or tooled,so that the inside surface of the ring is roughened and depressed into the body of the k nolo, to prevent the ring from turning around the knob, and thereby displacing the name-plate, so that the name ot' the stop could not be easily read.

rI`he edge a of the ring, being sunk into the material of theknob until its outside surface is flush with the surfaeeof the knob, forms a smooth face, free from all liability of cutting or injuring the fingers when the knob is in use. The ring A also serves, when seated in position, as above described, as a binder to prevent the knob from checking or splitting while in use.

I am aware that knobs have heretofore been iliade by compressing a ring around the top and sides thereof to hold a plate in position; hence I do not claim that feature, broadly.

Vhat I do claim, and desire to secure by Letters Patent, is-

In an organ-stop knob, the combination of the knob D, provided with a sloping interior top, the plate B, the ring A, provided with the dange 6 and milling b, substantially as dcscribed, and for the purposes set forth.

RNALDO ALDEN.

Witnesses:

THOMAS J. RODMAN, RUSSELL I-I. CURTIs, 

